重庆科技大学学报（自然科学版）2025，Vol.27Issue(4)：20-28,9.DOI:10.19406/j.issn.2097-4531.2025.04.003
基于产量递减分析的高产井生产动态评价方法
Production Performance Evaluation Method for High-Yield Wells Based on Production Decline Analysis
摘要
Abstract
The production rate of high-yield wells does not exhibit a significant decline trend during the initial pro-duction period,and the production performance is greatly influenced by the working schedule.Additionally,the near-wellbore region experiences high-velocity non-Darcy flow effects,which limits the applicability of conventional production performance evaluation methods.To address this,the variable production problem in high-yield wells is transformed into a constant production rate problem,thereby enabling production performance evaluation based on decline curve analysis.Firstly,the non-Darcy coefficient is introduced to characterize the flow characteristics,and the Duhamel principle is utilized to convert the pressure solution of variable production to that of constant produc-tion.Secondly,new indicators(material balance time and pseudo productivity index)are used to fit variable pro-duction rate data of high-yield wells into constant decline data,and production performance evaluation is completed in conjunction with the material balance method.The validity of the method is verified by taking the high-yield wells in the offshore B oilfield as an example.It can be concluded that the inversion results based on decline analy-sis are consistent with the well test interpretation conclusions.关键词
高产井/变产量生产/高速非达西流/杜哈梅原理/物质平衡法/采油指数Key words
high-yield well/variable production/high velocity non-Darcy/Duhamel principle/material balance method/oil production index分类
能源科技引用本文复制引用
金子一,张小涛,孔凡伟,王佳鑫,金毅浪,胡江鹏..基于产量递减分析的高产井生产动态评价方法[J].重庆科技大学学报（自然科学版）,2025,27(4):20-28,9.基金项目
国家自然科学基金项目"致密储层'压裂成藏'油水赋存状态变化机理及渗流数学模型研究"(52004307) （52004307）
中国石油重大战略项目"鄂尔多斯盆地致密油-页岩油富集、高效开发理论与关键技术"(ZLZX2020-02-04-03) （ZLZX2020-02-04-03）
